PVC fitting question?

Carloliveira · Mar 12, 2012

Just need to know if this situation is possibly taboo....

Off of a vertical riser from a tub drain into a 90 street elbow into the 45 of a wye lying on it's side to connect to a horizontal run.....

Trying to minimize space taken between the 2x8 so my basement drop ceiling doesn't have to come down lower.....

Kreemoweet · Mar 12, 2012

Don't know about the "taboo" business, but vertical to horizontal drain transitions generally require long-turn 90's (sweeps),
or equivalent.

Sponsor · 2022-01-29T12:20:58-0800

Terry · Mar 12, 2012

The tub drains needs a p-trap, attached to a trap arm, which is vented through the roof.
Going from vertical to horizontal requires a long turn 90 bend.
The equivalent is two 45 bends
One 45 and the 45 degree inlet of a wye together

From horizontal to vertical, is where a medium 90 can be used.

Carloliveira · Mar 12, 2012

So a wye with a 90 Turned up to go vertical on the 45 bend of the wye is not considered a long enough sweep only a 45 on the 45 of a wye is acceptable what about a long sweep 90 after a 45 of a wye so I could come off of a vented vertical riser into a horizontal run....

Terry · Mar 12, 2012

I'm getting a little confused by that.

Here are some pictures

They also make street versions of the 90 bends

A combo and a wye

Carloliveira · Mar 12, 2012

does a wye with a 45 on it work as the equivalent of a combo....when is it you would use a combo instead of a wye?

Jimbo · Mar 12, 2012

A combo is simply a single fitting to save time...a "combination" of a wye and a 45. You would use a wye to join at 45Âº instead of 90

PVC fitting question?

Carloliveira

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Kreemoweet

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Terry

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Carloliveira

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Terry

The Plumbing Wizard

Carloliveira

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Jimbo

Plumber

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